From twilight in the parking lot at Dulles Airport to a sunlit afternoon in a Belarus orchard, the action winds breathlessly eastward as Casey Collins and her small band of unlikely cohorts struggle to contain a nuclear evil let loose when the Cold War ended.
En route to Berlin for an international conference, a crushing series of events force Casey into the field to risk all she holds dear.

FBI Special Agent Dawna Shepherd confronts a Warsaw crime boss, a New York City bounty hunter, and a Homeland Security agent cowboying in the middle of the North Sea, among others. She foils devious plots ranging from human trafficking to illegal sports betting, and more. From Dallas to Ulan Bator, Dawna shuts down not only the FBI's most wanted and but also any crook messing with her family.

Terrorists plan to smuggle a nuclear bomb over the wide open Southwest border as the ultimate act of revenge. Government agencies know it is coming but seem powerless to stop it. A surprising twist will result in the death of more than 100,000 people and one of American's greatest cities will lie in waste.